Electrically-operated oil cup



May 8, 1923. y 1,454,123

Y R.l R. MccLulgE ELECTRICLLY OPERATED OIL CUP- Filed OCC. 20. 1921 INVENTOR.

I, Patented May 8, 1923.

teens UNITED sra'ras Partnr lorries. l'

.RALPH IR..l MoCIIIURE, OF SAN FRANCISCO,

CALIFORNIA.

CALIFORNIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO MCCLURE ELECTRIC OILING SYSTEM, lA 'CORPORATION OF ELEcrnIcALLY-ornaarnn o1L` our. l

Application led October 20, 192.1. Serial No. 509,033.

To all whom it mty concern.'

Be it known that I, RALPH R. MCCLURE,

a citizen of the United States, residing at- San Francisco, in the county of San Francisco, State of California, have `invented. a new and useful Electrically-Operated Oil Cup, of which the following is'a specification, in such full and clearterms as will c enable those skilled inthe art to construct and use the same. L

This invention relates to an electrically operated oil cup and its object is to produce in compact form an oiler for bearingswh'ich is capable of being operated `at a distance,

and which will deliver measured `quant-ities of oil under considerable pressure to the bearing feach time the'oiler is operated. y

Another object of the invent-ion is to produce a compact vand simple'oil cup which will prevent'o'il leakage to the bearing and which l can be operated with sufficientforce to insure forcing the oi-hthrough dirty bearings.

Another object of the-invention is to prof duce -an`oil cup which is easily filledv and in which vthe parts .are so assembled as' to give the necessary structure to provide for properly seating the cover while at the same time means is also provided for securing the necessary electrical connections to the oil Cup, Among other features, the invention has for one of its objects to provide a construc-4 tion wherein the lubricant or fluid acted on by theforcing member or piston serves as a fluid cushion for retardlng its movement enabling. the operator to readily detect the operation ofthe forcing member orpiston within an empty' cup. as the lack of fluidvcushion enables 4theforcing member to freely operate with considerable force and consequent 'noise which is-readily detected Aby the operator.

Other-objects of the invention will alp pear as the description proceeds.

.An embodiment of the invention is shown 1n the accompanying drawings inwhich the same reference numeral 1s applied Jtothe same portion throughout, but I am aware that there may bemodications thereof.

Fig. -1 is a vertical sectional view of the complete oil cup,

'Cun and 1S and check valve 19 in 4place to I Fig. 2 is .a :plan View ofthe oil cup with a portionof the'tvop broken away.-

Fig. -3' is a bottom plan view of the voil .F ig. `is a sectional view -of'th'e oil cup on the line4 1 -4 With the plunger removed.

' The oil cup consists of a base 1 suitably threaded at 2 to be connected with any de-- sired bearing, and also. secured to the base isthe cylindrical shell 3 which affords'the space for the insulation ofthe electrical con.-` nections and electro-magnet as well as the space for the oilv supply,` the magnet Wires being covered with-almatcrial whichjs vimpervious to the oil used.`

Pressed tightly into a recess iny thebase l is the open `shell core 5 madeI ofsoft iron to give the `desired magnet effect. An electric wire 6 suitably insulated 'passes from the bottom -of the core 5 outside the same and up to the binding screw 7.

The electromagnet consists of the ordinary form of aspool Wound magnet as indicated at S inserted in place in the shell 5 anrrrl` suitably secured thereto.

center large enough to receive the spiral spring 10 which' .bears upona lshoulder at the bottom of said hole and upon a shoulder ihe core 5 has a hole 'therethrough at the'.

of the stem 1.1, which stem has .the pump y plunger 12 at its lower end andthe `Inoval ble armature 13 at its upper end.

The plunger 12 movesin a small chamber` in the base 1,said chamber having a plurality of openings vas indicated at -13 to 16 to receive the electric wire 6 and to'permit the 'oil to passfrom. the main oil casing to the oil pressure chamber beforethe piston 12. The plunger operates withr a sliding it within said small chaniber,'thus under certain vim conditions offoperation, the oil volume displaced thereby through the .nipple 2 .may

tol the 'cup el varied, the excess returning p thev plunger by passing between .the Wall o and chamber;

Tithin the nipple1 there is a threaded 'collar 17 which holds a light spiral spring prevent the leakage of oil and toprevent 011 from working into the bearing and back into the .oil cup. The. adjustment of collar- 17 tov4 vary the tension of spring 18 affords means for controlling the charge-of lubricant eX- pressed ast the check valve 19, as the greater't yetension of spring-18, the greater the amount otlfluid by-passed around the piston 12. y I

The cup has a 'Harige cover 20 which is threaded on a, sleeve 21 surrounding the insulating sleeve 22 on the binding screw. 7.

l The binding screw. is forced into said insulating sleeve and is secured to thev oil Acup by means of the sleeve 21v which is threaded into a cross B. At its upper end'the binding screw 7 has va knurled nut 24 vfor securing the electricalconnections thereto.

It will be seen that there is but one conductor leading to the magnetic coil, the other end of the wire of said coil being suitably grounded to avoid the necessity of vhaving two wires extending tov the oil cup. y

IVhat I claim is as follows, but various modifications may be made in the construction' shown in the drawings and above particularly described form, within .the purview of my inventioiuv 1. An electric oil cup comprising a base, a check valve therein, a piston movable in a. Chamber in said base, a stem carrying the piston, an armature on the stem, an electromagnet within the oil receiving chamber for forcibly operating the piston to force oil through the cheek valve and into a 'bearing, and a spring for normally raising said piston within said chamber, said parts being contained within said cup.

2. An oil cup comprising a base, a cylindrical shell secured thereto Jforming an oil` receptacle, a check valve in the base, an electromagnet within the oil receiving chamlber, a piston movable ina chamber in the base to lforce oil therefrom, the electromag- 'net being arranged to operate said piston',

a bin ding post projecting upwardly from the cup to secure the electrical connections to the top of theoil cup, and a cover plate threaded on said securing means with its peripheral edges when said cover is in closed position engaging the upper edge of said oil cup.

3. An oil cup includinga shell having an outlet, a check valve therein, an oil collect'- 4saidchamber to permit'the oil within the bar 28 carried by the oil cup shellv ing chamber within the shell in communication withsaid outlet, a fluid eXpellin piston t movable intoI said chamber, Ieans tor nori mally maintaining said piston removed from 4 shell to. fill said chamber, and electromagnetic means for actuating said piston within said chamber to displace the oil therein from said outlet.

i 4L. An oil cup including an oil receiving chamber provided with an outlet, an electromagnetic operated means thereinfor forcibly expelling a predetermined Aquantity ot oil from said che. rberthrough said outlet, a binding posi extending upwardly from the center ofthe cup, and" a cup cover threaded.

`'to said post with 'its peripheral edge adapted to engage the upper edge of the cup.

5; An oil cup compri-sing a base, a shell eX- tending upwardly therefrom, said base pro-- vided with a tubular mounting nipple/at fording an oil outlet, a cup forming shell extending upwardly from the periphery of the base, said base provided with `an upstanding flange` a magnet core frictionally held thereby with portions` in spaced relation to said shelhalording an oil passageftherebetween, said base provided on its` i-nterior with radialchannels terminating in a sump surrounding said outlet and at their outer ends communicating with said-oil passage, a magnet spool carried by said core, a 'alve stem operating therethrough, a piston on the lower end thereof for operating in said sump,

' an armature at the upper end of said piston,

a spring ior normally maintaining said armature spaced vfrom said magnet and the piston raised from said sump, a supporting spider engaging the upper walls of said cup`v 9 a tubular stem threaded on its exterior and, extending upwardly from the center thereof, a binding post within said stem and insulated. therefrom, a connection between said magnet and binding post, and a cup cover adj ustably threaded on said stem.

In testimony whereof I have hereunto set my hand this 13th day of October7 A. D.A

RALPH R. MCCLUR'E. 

